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[AMPS] 3CX300A1 for AB1 GG

To: <amps@contesting.com>
Subject: [AMPS] 3CX300A1 for AB1 GG
From: measures@vc.net (Rich Measures)
Date: Tue, 27 Jul 1999 15:22:41 -0700


>
>> You are right if no ALC is used.  My idea assumes 1-10 mA grid current
>> (yes, it is little bit AB2), but ALC reduces driving power from the
>> excitor, resulting total IMD is not so bad. Remember 6146 AB1 GC in KWM-2,
>> same thing.
>
>First, ALC is not that fast. Most rigs can't even keep up with 
>themselves, let alone a loop from an external PA.
>
>Second, any grid current will perturb grid voltage unless the grid 
>comes from a supply with low esr and good dynamic regulation.
>
>Third, you are locked into cathode drive without complex circuitry. 
>
?  What is the Mu of the tube, Tom.  
> 
>73, Tom W8JI
>w8ji@contesting.com
>
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Rich...

R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures  


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